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Comparing deliantra/server/common/map.C (file contents):
Revision 1.76 by pippijn, Mon Jan 15 21:06:18 2007 UTC vs.
Revision 1.207 by root, Thu May 5 18:59:43 2011 UTC

1	/*	1	/*
2	* CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	* along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
31	#include "path.h"	28	#include "path.h"
32		29
33	/*	30	//+GPL
34	* This makes a path absolute outside the world of Crossfire.
35	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
36	* and returns the pointer to a static array containing the result.
37	* it really should be called create_mapname
38	*/
39	const char *
40	create_pathname (const char *name)
41	{
42	static char buf[8192];
43	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
44	return buf;
45	}
46		31
47	/*	32	sint8 maptile::outdoor_darkness;
48	* This function checks if a file with the given path exists.
49	* -1 is returned if it fails, otherwise the mode of the file
50	* is returned.
51	* It tries out all the compression suffixes listed in the uncomp[] array.
52	*
53	* If prepend_dir is set, then we call create_pathname (which prepends
54	* libdir & mapdir). Otherwise, we assume the name given is fully
55	* complete.
56	* Only the editor actually cares about the writablity of this -
57	* the rest of the code only cares that the file is readable.
58	* when the editor goes away, the call to stat should probably be
59	* replaced by an access instead (similar to the windows one, but
60	* that seems to be missing the prepend_dir processing
61	*/
62	int
63	check_path (const char *name, int prepend_dir)
64	{
65	char buf[MAX_BUF];
66
67	char *endbuf;
68	struct stat statbuf;
69	int mode = 0;
70
71	if (prepend_dir)
72	strcpy (buf, create_pathname (name));
73	else
74	strcpy (buf, name);
75
76	/* old method (strchr(buf, '\0')) seemd very odd to me -
77	* this method should be equivalant and is clearer.
78	* Can not use strcat because we need to cycle through
79	* all the names.
80	*/
81	endbuf = buf + strlen (buf);
82
83	if (stat (buf, &statbuf))
84	return -1;
85	if (!S_ISREG (statbuf.st_mode))
86	return (-1);
87
88	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
89	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
90	mode |= 4;
91
92	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
93	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
94	mode |= 2;
95
96	return (mode);
97	}
98		33
99	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
100	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
101	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
102	* new values into newmap, nx, and ny. Any and all of those	37	* new values into newmap, nx, and ny. Any and all of those
…		…
137	* by the caller.	72	* by the caller.
138	*/	73	*/
139	int	74	int
140	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
141	{	76	{
142	object *tmp;
143	int mflags, blocked;
144
145	/* Make sure the coordinates are valid - they should be, as caller should	77	/* Make sure the coordinates are valid - they should be, as caller should
146	* have already checked this.	78	* have already checked this.
147	*/	79	*/
148	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
149	{	81	{
150	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
151	return 1;	83	return 1;
152	}	84	}
153		85
154	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
155	* directly.
156	*/
157	mflags = m->at (sx, sy).flags ();
158		87
159	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
160		90
161	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
162	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
163	* things we need to do for players.	93	* things we need to do for players.
164	*/	94	*/
165	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
166	return 0;	96	return 0;
167		97
168	/* if there isn't anytyhing alive on this space, and this space isn't	98	/* if there isn't anything alive on this space, and this space isn't
169	* otherwise blocked, we can return now. Only if there is a living	99	* otherwise blocked, we can return now. Only if there is a living
170	* creature do we need to investigate if it is part of this creature	100	* creature do we need to investigate if it is part of this creature
171	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
172	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
173	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
174	*/	104	*/
175	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
176	return 0;	106	return 0;
177		107
178	if (ob->head != NULL)
179	ob = ob->head;	108	ob = ob->head_ ();
180		109
181	/* We basically go through the stack of objects, and if there is	110	/* We basically go through the stack of objects, and if there is
182	* some other object that has NO_PASS or FLAG_ALIVE set, return	111	* some other object that has NO_PASS or FLAG_ALIVE set, return
183	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
184	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
185	*/	114	*/
186	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
187	{	116	{
188		117	if (OB_MOVE_BLOCK (ob, tmp))
189	/* This must be before the checks below. Code for inventory checkers. */
190	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
191	{	118	{
192	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
193	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
194	* pass through this space.	121	return 1;
195	*/	122	else
196	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
197	{	126	{
198	if (check_inv_recursive (ob, tmp) == NULL)	127	bool have = check_inv_recursive (ob, tmp);
		128
		129	// last_sp set means we block if we don't have.
		130	if (logical_xor (have, tmp->last_sp))
199	return 1;	131	return 1;
200	else	132	}
201	continue;	133	else if (tmp->type == T_MATCH)
		134	{
		135	// T_MATCH allows "entrance" iff the match is true
		136	// == blocks if the match fails
		137
		138	// we could have used an INVOKE_OBJECT, but decided against it, as we
		139	// assume that T_MATCH is relatively common.
		140	if (!match (tmp->slaying, ob, tmp, ob))
		141	return 1;
202	}	142	}
203	else	143	else
204	{	144	return 1; // unconditional block
205	/* In this case, the player must not have the object -	145
206	* if they do, they can't pass through.
207	*/
208	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
209	return 1;
210	else
211	continue;
212	}
213	} /* if check_inv */
214	else	146	} else {
215	{	147	// space does not block the ob, directly, but
216	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
217	* this more readable. first check - if the space blocks	149	// blocks anything
218	* movement, can't move here.	150
219	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
220	* hidden dm	152	&& tmp->type != DOOR
221	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
222	if (OB_MOVE_BLOCK (ob, tmp))
223	return 1;
224	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
225	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
226	return 1;	154	return 1;
227	}	155	}
228
229	}	156	}
		157
230	return 0;	158	return 0;
231	}	159	}
232		160
233
234	/*	161	/*
235	* Returns true if the given object can't fit in the given spot.	162	* Returns the blocking object if the given object can't fit in the given
236	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
237	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
238	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
239	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
240	*	167	*
241	* While this doesn't call out of map, the get_map_flags does.	168	* While this doesn't call out of map, the get_map_flags does.
242	*	169	*
243	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
244	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
255	*	182	*
256	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
257	* code, we need to have actual object to check its move_type	184	* code, we need to have actual object to check its move_type
258	* against the move_block values.	185	* against the move_block values.
259	*/	186	*/
260	int	187	bool
261	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
262	{	189	{
263	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
264	int flag;
265	maptile *m1;
266	sint16 sx, sy;
267
268	if (!ob)
269	{
270	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
271	if (flag & P_OUT_OF_MAP)
272	return P_OUT_OF_MAP;
273
274	/* don't have object, so don't know what types would block */
275	return m1->at (sx, sy).move_block;
276	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
277		193
278	for (tmp = ob->arch; tmp; tmp = tmp->more)	194	if (!pos.normalise ())
279	{	195	return 1;
280	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
281		196
282	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
283	return P_OUT_OF_MAP;	198
284	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
285	return P_IS_ALIVE;	200	return 1;
286		201
287	mapspace &ms = m1->at (sx, sy);	202	/* However, often ob doesn't have any move type
288		203	* (signifying non-moving objects)
289	/* find_first_free_spot() calls this function. However, often
290	* ob doesn't have any move type (when used to place exits)
291	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	204	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
292	*/	205	*/
293
294	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	206	if (!move_type && ms.move_block != MOVE_ALL)
295	continue;	207	continue;
296		208
297	/* Note it is intentional that we check ob - the movement type of the	209	/* Note it is intentional that we check ob - the movement type of the
298	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
299	*/	211	*/
300	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	212	if (ms.blocks (move_type))
301	return P_NO_PASS;	213	return 1;
302	}	214	}
303		215
304	return 0;	216	return 0;
305	}	217	}
306		218
307	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
308	* into inventory, but just links them. What this does is go through
309	* and insert them properly.
310	* The object 'container' is the object that contains the inventory.
311	* This is needed so that we can update the containers weight.
312	*/
313	void
314	fix_container (object *container)
315	{
316	object *tmp = container->inv, *next;
317
318	container->inv = 0;
319	while (tmp)
320	{
321	next = tmp->below;
322	if (tmp->inv)
323	fix_container (tmp);
324
325	insert_ob_in_ob (tmp, container);
326	tmp = next;
327	}
328
329	/* sum_weight will go through and calculate what all the containers are
330	* carrying.
331	*/
332	sum_weight (container);
333	}
334		220
335	void	221	void
336	maptile::set_object_flag (int flag, int value)	222	maptile::set_object_flag (int flag, int value)
337	{	223	{
338	if (!spaces)	224	if (!spaces)
…		…
341	for (mapspace *ms = spaces + size (); ms-- > spaces; )	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
342	for (object *tmp = ms->bot; tmp; tmp = tmp->above)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
343	tmp->flag [flag] = value;	229	tmp->flag [flag] = value;
344	}	230	}
345		231
		232	void
		233	maptile::post_load_original ()
		234	{
		235	if (!spaces)
		236	return;
		237
		238	set_object_flag (FLAG_OBJ_ORIGINAL);
		239
		240	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		241	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		242	INVOKE_OBJECT (RESET, tmp);
		243	}
		244
		245	void
		246	maptile::post_load ()
		247	{
		248	#if 0
		249	if (!spaces)
		250	return;
		251
		252	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		253	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		254	; // nop
		255	#endif
		256	}
		257
		258	//+GPL
		259
346	/* link_multipart_objects go through all the objects on the map looking	260	/* link_multipart_objects go through all the objects on the map looking
347	* for objects whose arch says they are multipart yet according to the	261	* for objects whose arch says they are multipart yet according to the
348	* info we have, they only have the head (as would be expected when	262	* info we have, they only have the head (as would be expected when
349	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
350	* the more sections and not re-add sections for them.
351	*/	264	*/
352	void	265	void
353	maptile::link_multipart_objects ()	266	maptile::link_multipart_objects ()
354	{	267	{
355	if (!spaces)	268	if (!spaces)
356	return;	269	return;
357		270
358	for (mapspace *ms = spaces + size (); ms-- > spaces; )	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
359	for (object *tmp = ms->bot; tmp; )	272	{
		273	object *op = ms->bot;
		274	while (op)
360	{	275	{
361	object *above = tmp->above;
362
363	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
364	if (!tmp->head && !tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
365	{
366	/* If there is nothing more to this object, this for loop
367	* won't do anything.
368	*/
369	archetype *at;
370	object *last, *op;
371	for (at = tmp->arch->more, last = tmp;
372	at;
373	at = at->more, last = op)
374	{	278	{
375	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
376		281
377	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
378	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
379	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
380	op->head = tmp;
381	op->map = this;
382	last->more = op;
383	op->name = tmp->name;
384	op->title = tmp->title;
385
386	/* we could link all the parts onto tmp, and then just
387	* call insert_ob_in_map once, but the effect is the same,
388	* as insert_ob_in_map will call itself with each part, and
389	* the coding is simpler to just to it here with each part.
390	*/
391	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
		286
		287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
		288	// so we have to reset the iteration through the mapspace
392	}	289	}
		290	else
		291	op = op->above;
393	}	292	}
394
395	tmp = above;
396	}	293	}
397	}	294	}
		295
		296	//-GPL
398		297
399	/*	298	/*
400	* Loads (ands parses) the objects into a given map from the specified	299	* Loads (ands parses) the objects into a given map from the specified
401	* file pointer.	300	* file pointer.
402	* mapflags is the same as we get with load_original_map
403	*/	301	*/
404	bool	302	bool
405	maptile::_load_objects (object_thawer &thawer)	303	maptile::_load_objects (object_thawer &f)
406	{	304	{
407	int unique;	305	for (;;)
408	object *op, *prev = NULL, *last_more = NULL, *otmp;
409
410	op = object::create ();
411	op->map = this; /* To handle buttons correctly */
412
413	while (int i = load_object (thawer, op, 0))
414	{	306	{
415	/* if the archetype for the object is null, means that we	307	coroapi::cede_to_tick (); // cede once in a while
416	* got an invalid object. Don't do anything with it - the game	308
417	* or editor will not be able to do anything with it either.	309	switch (f.kw)
418	*/
419	if (op->arch == NULL)
420	{	310	{
421	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	311	case KW_arch:
		312	if (object *op = object::read (f, this))
		313	{
		314	// TODO: why?
		315	if (op->inv)
		316	{
		317	op->carrying = 0;
		318	op->update_weight ();
		319	}
		320
		321	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		322	{
		323	// we insert manually because
		324	// a) its way faster
		325	// b) we remove manually, too, and there are good reasons for that
		326	// c) it's correct
		327	mapspace &ms = at (op->x, op->y);
		328
		329	op->flag [FLAG_REMOVED] = false;
		330
		331	op->above = 0;
		332	op->below = ms.top;
		333
		334	*(ms.top ? &ms.top->above : &ms.bot) = op;
		335
		336	ms.top = op;
		337	ms.flags_ = 0;
		338	}
		339	else
		340	{
		341	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		342	op->destroy ();
		343	}
		344	}
		345
422	continue;	346	continue;
423	}
424		347
425	switch (i)
426	{
427	case LL_NORMAL:
428	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
429
430	if (op->inv)
431	sum_weight (op);
432
433	prev = op, last_more = op;
434	break;
435
436	case LL_MORE:	348	case KW_EOF:
437	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	349	return true;
438	op->head = prev, last_more->more = op, last_more = op;	350
		351	default:
		352	if (!f.parse_error ("map file"))
		353	return false;
439	break;	354	break;
440	}	355	}
441		356
442	op = object::create ();	357	f.next ();
443	op->map = this;
444	}
445
446	op->destroy ();
447
448	#if 0
449	for (i = 0; i < width; i++)
450	for (j = 0; j < height; j++)
451	{
452	unique = 0;
453	/* check for unique items, or unique squares */
454	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)
455	{
456	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
457	unique = 1;
458
459	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
460	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
461	}
462	}	358	}
463	#endif
464		359
465	return true;	360	return true;
466	}	361	}
467		362
468	void	363	void
469	maptile::activate ()	364	maptile::activate ()
470	{	365	{
471	if (!spaces)	366	if (state != MAP_INACTIVE)
472	return;	367	return;
473		368
474	for (mapspace *ms = spaces + size (); ms-- > spaces; )	369	for (mapspace *ms = spaces + size (); ms-- > spaces; )
475	for (object *op = ms->bot; op; op = op->above)	370	for (object *op = ms->bot; op; op = op->above)
476	op->activate_recursive ();	371	op->activate_recursive ();
		372
		373	state = MAP_ACTIVE;
477	}	374	}
478		375
479	void	376	void
480	maptile::deactivate ()	377	maptile::deactivate ()
481	{	378	{
482	if (!spaces)	379	if (state != MAP_ACTIVE)
483	return;	380	return;
484		381
485	for (mapspace *ms = spaces + size (); ms-- > spaces; )	382	for (mapspace *ms = spaces + size (); ms-- > spaces; )
486	for (object *op = ms->bot; op; op = op->above)	383	for (object *op = ms->bot; op; op = op->above)
487	op->deactivate_recursive ();	384	op->deactivate_recursive ();
		385
		386	state = MAP_INACTIVE;
488	}	387	}
489		388
490	bool	389	bool
491	maptile::_save_objects (object_freezer &freezer, int flags)	390	maptile::_save_objects (object_freezer &f, int flags)
492	{	391	{
493	static int cede_count = 0;	392	coroapi::cede_to_tick ();
494		393
495	if (flags & IO_HEADER)	394	if (flags & IO_HEADER)
496	_save_header (freezer);	395	_save_header (f);
497		396
498	if (!spaces)	397	if (!spaces)
499	return false;	398	return false;
500		399
501	for (int i = 0; i < size (); ++i)	400	for (int i = 0; i < size (); ++i)
502	{	401	{
503	#if 0 // temporarily disabled for improved(?) stability, schmorp #TODO#d#//D
504	if (cede_count >= 500)
505	{
506	cede_count = 0;
507	coroapi::cede ();
508	}
509	#endif
510
511	int unique = 0;	402	bool unique = 0;
		403
512	for (object *op = spaces [i].bot; op; op = op->above)	404	for (object *op = spaces [i].bot; op; op = op->above)
513	{	405	{
514	// count per-object, but cede only when modification-safe
515	cede_count++;
516
517	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	406	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
518	unique = 1;
519		407
520	if (!op->can_map_save ())	408	if (expect_false (!op->can_map_save ()))
521	continue;	409	continue;
522		410
523	if (unique || op->flag [FLAG_UNIQUE])	411	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
524	{	412	{
525	if (flags & IO_UNIQUES)	413	if (flags & IO_UNIQUES)
526	save_object (freezer, op, 1);	414	op->write (f);
527	}	415	}
528	else if (flags & IO_OBJECTS)	416	else if (expect_true (flags & IO_OBJECTS))
529	save_object (freezer, op, 1);	417	op->write (f);
530	}	418	}
531	}	419	}
532		420
		421	coroapi::cede_to_tick ();
		422
533	return true;	423	return true;
534	}
535
536	bool
537	maptile::_load_objects (const char *path, bool skip_header)
538	{
539	object_thawer thawer (path);
540
541	if (!thawer)
542	return false;
543
544	if (skip_header)
545	for (;;)
546	{
547	keyword kw = thawer.get_kv ();
548
549	if (kw == KW_end)
550	break;
551
552	thawer.skip_kv (kw);
553	}
554
555	return _load_objects (thawer);
556	}	424	}
557		425
558	bool	426	bool
559	maptile::_save_objects (const char *path, int flags)	427	maptile::_save_objects (const char *path, int flags)
560	{	428	{
…		…
564	return false;	432	return false;
565		433
566	return freezer.save (path);	434	return freezer.save (path);
567	}	435	}
568		436
569	maptile::maptile ()	437	void
		438	maptile::init ()
570	{	439	{
571	in_memory = MAP_SWAPPED;	440	state = MAP_SWAPPED;
572		441
573	/* The maps used to pick up default x and y values from the	442	/* The maps used to pick up default x and y values from the
574	* map archetype. Mimic that behaviour.	443	* map archetype. Mimic that behaviour.
575	*/	444	*/
576	width = 16;	445	width = 16;
577	height = 16;	446	height = 16;
		447	timeout = 300;
		448	max_items = MAX_ITEM_PER_ACTION;
		449	max_volume = 2000000; // 2m³
578	reset_timeout = 0;	450	reset_timeout = 0;
579	timeout = 300;
580	enter_x = 0;	451	enter_x = 0;
581	enter_y = 0;	452	enter_y = 0;
582	}	453	}
583		454
		455	maptile::maptile ()
		456	{
		457	init ();
		458	}
		459
584	maptile::maptile (int w, int h)	460	maptile::maptile (int w, int h)
585	{	461	{
586	in_memory = MAP_SWAPPED;	462	init ();
587		463
588	width = w;	464	width = w;
589	height = h;	465	height = h;
590	reset_timeout = 0;
591	timeout = 300;
592	enter_x = 0;
593	enter_y = 0;
594		466
595	alloc ();	467	alloc ();
596	}	468	}
597		469
598	/*	470	/*
…		…
606	if (spaces)	478	if (spaces)
607	return;	479	return;
608		480
609	spaces = salloc0<mapspace> (size ());	481	spaces = salloc0<mapspace> (size ());
610	}	482	}
		483
		484	//+GPL
611		485
612	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	486	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
613	* corresponding to that string. Memory is allocated for this, it must be freed	487	* corresponding to that string. Memory is allocated for this, it must be freed
614	* at a later date.	488	* at a later date.
615	* Called by parse_map_headers below.	489	* Called by parse_map_headers below.
…		…
692	return items;	566	return items;
693	}	567	}
694		568
695	/* opposite of parse string, this puts the string that was originally fed in to	569	/* opposite of parse string, this puts the string that was originally fed in to
696	* the map (or something equivilent) into output_string. */	570	* the map (or something equivilent) into output_string. */
697	static void	571	static const char *
698	print_shop_string (maptile *m, char *output_string)	572	print_shop_string (maptile *m)
699	{	573	{
700	int i;	574	static dynbuf_text buf; buf.clear ();
701	char tmp[MAX_BUF];	575	bool first = true;
702		576
703	strcpy (output_string, "");
704	for (i = 0; i < m->shopitems[0].index; i++)	577	for (int i = 0; i < m->shopitems[0].index; i++)
705	{	578	{
		579	if (!first)
		580	buf << ';';
		581
		582	first = false;
		583
706	if (m->shopitems[i].typenum)	584	if (m->shopitems[i].typenum)
707	{	585	{
708	if (m->shopitems[i].strength)	586	if (m->shopitems[i].strength)
709	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	587	buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
710	else	588	else
711	sprintf (tmp, "%s;", m->shopitems[i].name);	589	buf.printf ("%s", m->shopitems[i].name);
712	}	590	}
713	else	591	else
714	{	592	{
715	if (m->shopitems[i].strength)	593	if (m->shopitems[i].strength)
716	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	594	buf.printf ("*:%d", m->shopitems[i].strength);
717	else	595	else
718	sprintf (tmp, "*");	596	buf.printf ("*");
719	}	597	}
720
721	strcat (output_string, tmp);
722	}	598	}
		599
		600	return buf;
723	}	601	}
		602
		603	//-GPL
724		604
725	/* This loads the header information of the map. The header	605	/* This loads the header information of the map. The header
726	* contains things like difficulty, size, timeout, etc.	606	* contains things like difficulty, size, timeout, etc.
727	* this used to be stored in the map object, but with the	607	* this used to be stored in the map object, but with the
728	* addition of tiling, fields beyond that easily named in an	608	* addition of tiling, fields beyond that easily named in an
…		…
736	bool	616	bool
737	maptile::_load_header (object_thawer &thawer)	617	maptile::_load_header (object_thawer &thawer)
738	{	618	{
739	for (;;)	619	for (;;)
740	{	620	{
741	keyword kw = thawer.get_kv ();
742
743	switch (kw)	621	switch (thawer.kw)
744	{	622	{
745	case KW_EOF:
746	LOG (llevError, "%s: end of file while reading map header, aborting header load.\n", &path);
747	return false;
748
749	case KW_end:
750	return true;
751
752	default:
753	case KW_ERROR:
754	LOG (llevError, "%s: skipping errornous line (%s) while reading map header.\n", &path, thawer.last_keyword);
755	break;
756
757	case KW_msg:	623	case KW_msg:
758	thawer.get_ml (KW_endmsg, msg);	624	thawer.get_ml (KW_endmsg, msg);
759	break;	625	break;
760		626
761	case KW_lore: // CF+ extension	627	case KW_lore: // deliantra extension
762	thawer.get_ml (KW_endlore, maplore);	628	thawer.get_ml (KW_endlore, maplore);
763	break;	629	break;
764		630
765	case KW_maplore:	631	case KW_maplore:
766	thawer.get_ml (KW_endmaplore, maplore);	632	thawer.get_ml (KW_endmaplore, maplore);
…		…
783	case KW_shopgreed: thawer.get (shopgreed); break;	649	case KW_shopgreed: thawer.get (shopgreed); break;
784	case KW_shopmin: thawer.get (shopmin); break;	650	case KW_shopmin: thawer.get (shopmin); break;
785	case KW_shopmax: thawer.get (shopmax); break;	651	case KW_shopmax: thawer.get (shopmax); break;
786	case KW_shoprace: thawer.get (shoprace); break;	652	case KW_shoprace: thawer.get (shoprace); break;
787	case KW_outdoor: thawer.get (outdoor); break;	653	case KW_outdoor: thawer.get (outdoor); break;
788	case KW_temp: thawer.get (temp); break;
789	case KW_pressure: thawer.get (pressure); break;
790	case KW_humid: thawer.get (humid); break;
791	case KW_windspeed: thawer.get (windspeed); break;
792	case KW_winddir: thawer.get (winddir); break;
793	case KW_sky: thawer.get (sky); break;
794		654
795	case KW_per_player: thawer.get (per_player); break;	655	case KW_per_player: thawer.get (per_player); break;
796	case KW_per_party: thawer.get (per_party); break;	656	case KW_per_party: thawer.get (per_party); break;
		657	case KW_no_reset: thawer.get (no_reset); break;
		658	case KW_no_drop: thawer.get (no_drop); break;
797		659
798	case KW_region: get_region_by_name (thawer.get_str ()); break;	660	case KW_region: thawer.get (default_region); break;
799	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	661	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
800		662
801	// old names new names	663	// old names new names
802	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;	664	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
803	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;	665	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
…		…
811		673
812	case KW_tile_path_1: thawer.get (tile_path [0]); break;	674	case KW_tile_path_1: thawer.get (tile_path [0]); break;
813	case KW_tile_path_2: thawer.get (tile_path [1]); break;	675	case KW_tile_path_2: thawer.get (tile_path [1]); break;
814	case KW_tile_path_3: thawer.get (tile_path [2]); break;	676	case KW_tile_path_3: thawer.get (tile_path [2]); break;
815	case KW_tile_path_4: thawer.get (tile_path [3]); break;	677	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		678	case KW_tile_path_5: thawer.get (tile_path [4]); break;
		679	case KW_tile_path_6: thawer.get (tile_path [5]); break;
		680
		681	case KW_ERROR:
		682	set_key_text (thawer.kw_str, thawer.value);
		683	break;
		684
		685	case KW_end:
		686	thawer.next ();
		687	return true;
		688
		689	default:
		690	if (!thawer.parse_error ("map"))
		691	return false;
		692	break;
816	}	693	}
		694
		695	thawer.next ();
817	}	696	}
818		697
819	abort ();	698	abort ();
820	}	699	}
821		700
822	bool	701	//+GPL
823	maptile::_load_header (const char *path)
824	{
825	object_thawer thawer (path);
826
827	if (!thawer)
828	return false;
829
830	return _load_header (thawer);
831	}
832		702
833	/******************************************************************************	703	/******************************************************************************
834	* This is the start of unique map handling code	704	* This is the start of unique map handling code
835	*****************************************************************************/	705	*****************************************************************************/
836		706
…		…
843	int unique = 0;	713	int unique = 0;
844	for (object *op = spaces [i].bot; op; )	714	for (object *op = spaces [i].bot; op; )
845	{	715	{
846	object *above = op->above;	716	object *above = op->above;
847		717
848	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	718	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
849	unique = 1;	719	unique = 1;
850		720
851	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	721	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
852	{
853	op->destroy_inv (false);
854	op->destroy ();	722	op->destroy ();
855	}
856		723
857	op = above;	724	op = above;
858	}	725	}
859	}	726	}
860	}	727	}
861		728
		729	//-GPL
		730
862	bool	731	bool
863	maptile::_save_header (object_freezer &freezer)	732	maptile::_save_header (object_freezer &freezer)
864	{	733	{
865	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	734	#define MAP_OUT(k) freezer.put (KW(k), k)
866	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	735	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
867		736
868	MAP_OUT2 (arch, "map");	737	MAP_OUT2 (arch, CS(map));
869		738
870	if (name) MAP_OUT (name);	739	if (name) MAP_OUT (name);
871	MAP_OUT (swap_time);	740	MAP_OUT (swap_time);
872	MAP_OUT (reset_time);	741	MAP_OUT (reset_time);
873	MAP_OUT (reset_timeout);	742	MAP_OUT (reset_timeout);
874	MAP_OUT (fixed_resettime);	743	MAP_OUT (fixed_resettime);
		744	MAP_OUT (no_reset);
		745	MAP_OUT (no_drop);
875	MAP_OUT (difficulty);	746	MAP_OUT (difficulty);
876
877	if (region) MAP_OUT2 (region, region->name);	747	if (default_region) MAP_OUT2 (region, default_region->name);
878		748
879	if (shopitems)	749	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
880	{
881	char shop[MAX_BUF];
882	print_shop_string (this, shop);
883	MAP_OUT2 (shopitems, shop);
884	}
885
886	MAP_OUT (shopgreed);	750	MAP_OUT (shopgreed);
887	MAP_OUT (shopmin);	751	MAP_OUT (shopmin);
888	MAP_OUT (shopmax);	752	MAP_OUT (shopmax);
889	if (shoprace) MAP_OUT (shoprace);	753	if (shoprace) MAP_OUT (shoprace);
890	MAP_OUT (darkness);	754
891	MAP_OUT (width);	755	MAP_OUT (width);
892	MAP_OUT (height);	756	MAP_OUT (height);
893	MAP_OUT (enter_x);	757	MAP_OUT (enter_x);
894	MAP_OUT (enter_y);	758	MAP_OUT (enter_y);
895		759	MAP_OUT (darkness);
896	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
897	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
898
899	MAP_OUT (outdoor);	760	MAP_OUT (outdoor);
900	MAP_OUT (temp);	761
901	MAP_OUT (pressure);	762	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
902	MAP_OUT (humid);	763	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
903	MAP_OUT (windspeed);
904	MAP_OUT (winddir);
905	MAP_OUT (sky);
906		764
907	MAP_OUT (per_player);	765	MAP_OUT (per_player);
908	MAP_OUT (per_party);	766	MAP_OUT (per_party);
909		767
910	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	768	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
911	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	769	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
912	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	770	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
913	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	771	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		772	if (tile_path [4]) MAP_OUT2 (tile_path_5, tile_path [4]);
		773	if (tile_path [5]) MAP_OUT2 (tile_path_6, tile_path [5]);
914		774
915	freezer.put (this);	775	freezer.put (this);
916	freezer.put (KW_end);	776	freezer.put (KW(end));
917		777
918	return true;	778	return true;
919	}	779	}
920		780
921	bool	781	bool
…		…
927	return false;	787	return false;
928		788
929	return freezer.save (path);	789	return freezer.save (path);
930	}	790	}
931		791
		792	//+GPL
		793
932	/*	794	/*
933	* Remove and free all objects in the given map.	795	* Remove and free all objects in the given map.
934	*/	796	*/
935	void	797	void
936	maptile::clear ()	798	maptile::clear ()
937	{	799	{
938	if (!spaces)	800	if (spaces)
939	return;	801	{
940
941	for (mapspace *ms = spaces + size (); ms-- > spaces; )	802	for (mapspace *ms = spaces + size (); ms-- > spaces; )
942	while (object *op = ms->bot)	803	while (object *op = ms->bot)
943	{	804	{
		805	// manually remove, as to not trigger anything
		806	if (ms->bot = op->above)
		807	ms->bot->below = 0;
		808
		809	op->flag [FLAG_REMOVED] = true;
		810
		811	object *head = op->head_ ();
944	if (op->head)	812	if (op == head)
945	op = op->head;
946
947	op->destroy_inv (false);
948	op->destroy ();	813	op->destroy ();
		814	else if (head->map != op->map)
		815	{
		816	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		817	head->destroy ();
		818	}
		819	}
		820
		821	sfree0 (spaces, size ());
949	}	822	}
950
951	sfree (spaces, size ()), spaces = 0;
952		823
953	if (buttons)	824	if (buttons)
954	free_objectlinkpt (buttons), buttons = 0;	825	free_objectlinkpt (buttons), buttons = 0;
		826
		827	sfree0 (regions, size ());
		828	delete [] regionmap; regionmap = 0;
955	}	829	}
956		830
957	void	831	void
958	maptile::clear_header ()	832	maptile::clear_header ()
959	{	833	{
…		…
961	msg = 0;	835	msg = 0;
962	maplore = 0;	836	maplore = 0;
963	shoprace = 0;	837	shoprace = 0;
964	delete [] shopitems, shopitems = 0;	838	delete [] shopitems, shopitems = 0;
965		839
966	for (int i = 0; i < 4; i++)	840	for (int i = 0; i < array_length (tile_path); i++)
967	tile_path [i] = 0;	841	tile_path [i] = 0;
968	}	842	}
969		843
970	maptile::~maptile ()	844	maptile::~maptile ()
971	{	845	{
…		…
978	/* We need to look through all the maps and see if any maps	852	/* We need to look through all the maps and see if any maps
979	* are pointing at this one for tiling information. Since	853	* are pointing at this one for tiling information. Since
980	* tiling can be asymetric, we just can not look to see which	854	* tiling can be asymetric, we just can not look to see which
981	* maps this map tiles with and clears those.	855	* maps this map tiles with and clears those.
982	*/	856	*/
983	for (int i = 0; i < 4; i++)	857	for (int i = 0; i < array_length (tile_path); i++)
984	if (tile_map[i] == m)	858	if (tile_map[i] == m)
985	tile_map[i] = 0;	859	tile_map[i] = 0;
986	}	860	}
987		861
988	void	862	void
…		…
991	attachable::do_destroy ();	865	attachable::do_destroy ();
992		866
993	clear ();	867	clear ();
994	}	868	}
995		869
996	/*	870	/* decay and destroy perishable items in a map */
997	* Updates every button on the map (by calling update_button() for them).	871	// TODO: should be done regularly, not on map load?
998	*/
999	void	872	void
1000	maptile::update_buttons ()	873	maptile::do_decay_objects ()
1001	{	874	{
1002	for (oblinkpt *obp = buttons; obp; obp = obp->next)	875	if (!spaces)
1003	for (objectlink *ol = obp->link; ol; ol = ol->next)	876	return;
		877
		878	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		879	for (object *above, *op = ms->bot; op; op = above)
1004	{	880	{
1005	if (!ol->ob)	881	above = op->above;
		882
		883	// do not decay anything above unique floor tiles (yet :)
		884	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		885	break;
		886
		887	bool destroy = 0;
		888
		889	if (op->flag [FLAG_IS_FLOOR]
		890	|| op->flag [FLAG_OBJ_ORIGINAL]
		891	|| op->flag [FLAG_UNIQUE]
		892	|| op->flag [FLAG_OVERLAY_FLOOR]
		893	|| op->flag [FLAG_UNPAID]
		894	|| op->is_alive ())
		895	; // do not decay
		896	else if (op->is_weapon ())
1006	{	897	{
1007	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",	898	op->stats.dam--;
1008	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);	899	if (op->stats.dam < 0)
1009	continue;	900	destroy = 1;
1010	}	901	}
1011		902	else if (op->is_armor ())
1012	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1013	{	903	{
1014	update_button (ol->ob);	904	op->stats.ac--;
1015	break;	905	if (op->stats.ac < 0)
		906	destroy = 1;
1016	}	907	}
		908	else if (op->type == FOOD)
		909	{
		910	op->stats.food -= rndm (5, 20);
		911	if (op->stats.food < 0)
		912	destroy = 1;
		913	}
		914	else
		915	{
		916	int mat = op->materials;
		917
		918	if (mat & M_PAPER
		919	|| mat & M_LEATHER
		920	|| mat & M_WOOD
		921	|| mat & M_ORGANIC
		922	|| mat & M_CLOTH
		923	|| mat & M_LIQUID
		924	|| (mat & M_IRON && rndm (1, 5) == 1)
		925	|| (mat & M_GLASS && rndm (1, 2) == 1)
		926	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		927	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		928	//|| (mat & M_ICE && temp > 32)
		929	)
		930	destroy = 1;
		931	}
		932
		933	/* adjust overall chance below */
		934	if (destroy && rndm (0, 1))
		935	op->destroy ();
1017	}	936	}
1018	}	937	}
1019		938
1020	/*	939	/*
1021	* This routine is supposed to find out the difficulty of the map.	940	* This routine is supposed to find out the difficulty of the map.
1022	* difficulty does not have a lot to do with character level,	941	* difficulty does not have a lot to do with character level,
1023	* but does have a lot to do with treasure on the map.	942	* but does have a lot to do with treasure on the map.
1024	*	943	*
1025	* Difficulty can now be set by the map creature. If the value stored	944	* Difficulty can now be set by the map creator. If the value stored
1026	* in the map is zero, then use this routine. Maps should really	945	* in the map is zero, then use this routine. Maps should really
1027	* have a difficulty set than using this function - human calculation	946	* have a difficulty set rather than using this function - human calculation
1028	* is much better than this functions guesswork.	947	* is much better than this function's guesswork.
1029	*/	948	*/
1030	int	949	int
1031	maptile::estimate_difficulty () const	950	maptile::estimate_difficulty () const
1032	{	951	{
1033	long monster_cnt = 0;	952	long monster_cnt = 0;
…		…
1035	sint64 total_exp = 0;	954	sint64 total_exp = 0;
1036		955
1037	for (mapspace *ms = spaces + size (); ms-- > spaces; )	956	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1038	for (object *op = ms->bot; op; op = op->above)	957	for (object *op = ms->bot; op; op = op->above)
1039	{	958	{
1040	if (QUERY_FLAG (op, FLAG_MONSTER))	959	if (op->flag [FLAG_MONSTER])
1041	{	960	{
1042	total_exp += op->stats.exp;	961	total_exp += op->stats.exp;
1043	monster_cnt++;	962	monster_cnt++;
1044	}	963	}
1045		964
1046	if (QUERY_FLAG (op, FLAG_GENERATOR))	965	if (op->flag [FLAG_GENERATOR])
1047	{	966	{
1048	total_exp += op->stats.exp;	967	total_exp += op->stats.exp;
1049		968
1050	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	969	if (archetype *at = op->other_arch)
		970	{
1051	total_exp += at->clone.stats.exp * 8;	971	total_exp += at->stats.exp * 8;
1052
1053	monster_cnt++;	972	monster_cnt++;
		973	}
		974
		975	for (object *inv = op->inv; inv; inv = inv->below)
		976	{
		977	total_exp += op->stats.exp * 8;
		978	monster_cnt++;
		979	}
1054	}	980	}
1055	}	981	}
1056		982
1057	avgexp = (double) total_exp / monster_cnt;	983	avgexp = (double) total_exp / monster_cnt;
1058		984
…		…
1071	* postive values make it darker, negative make it brighter	997	* postive values make it darker, negative make it brighter
1072	*/	998	*/
1073	int	999	int
1074	maptile::change_map_light (int change)	1000	maptile::change_map_light (int change)
1075	{	1001	{
1076	int new_level = darkness + change;
1077
1078	/* Nothing to do */	1002	/* Nothing to do */
1079	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	1003	if (!change)
1080	return 0;	1004	return 0;
1081		1005
1082	/* inform all players on the map */	1006	/* inform all players on the map */
1083	if (change > 0)	1007	if (change > 0)
1084	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	1008	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1085	else	1009	else
1086	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	1010	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1087		1011
1088	/* Do extra checking. since darkness is a unsigned value,	1012	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1089	* we need to be extra careful about negative values.
1090	* In general, the checks below are only needed if change
1091	* is not +/-1
1092	*/
1093	if (new_level < 0)
1094	darkness = 0;
1095	else if (new_level >= MAX_DARKNESS)
1096	darkness = MAX_DARKNESS;
1097	else
1098	darkness = new_level;
1099		1013
1100	/* All clients need to get re-updated for the change */	1014	/* All clients need to get re-updated for the change */
1101	update_all_map_los (this);	1015	update_all_map_los (this);
		1016
1102	return 1;	1017	return 1;
1103	}	1018	}
1104		1019
1105	/*	1020	/*
1106	* This function updates various attributes about a specific space	1021	* This function updates various attributes about a specific space
…		…
1109	* through, etc)	1024	* through, etc)
1110	*/	1025	*/
1111	void	1026	void
1112	mapspace::update_ ()	1027	mapspace::update_ ()
1113	{	1028	{
1114	object *tmp, *last = 0;	1029	object *last = 0;
1115	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;	1030	uint8 flags = P_UPTODATE;
1116	New_Face *top, *floor, *middle;	1031	sint8 light = 0;
1117	object *top_obj, *floor_obj, *middle_obj;
1118	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1032	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1033	uint64_t volume = 0;
		1034	uint32_t items = 0;
		1035	object *anywhere = 0;
		1036	uint8_t middle_visibility = 0;
1119		1037
1120	middle = blank_face;	1038	//object *middle = 0;
1121	top = blank_face;	1039	//object *top = 0;
1122	floor = blank_face;	1040	//object *floor = 0;
		1041	// this seems to generate better code than using locals, above
		1042	object *&top = faces_obj[0] = 0;
		1043	object *&middle = faces_obj[1] = 0;
		1044	object *&floor = faces_obj[2] = 0;
1123		1045
1124	middle_obj = 0;	1046	object::flags_t allflags; // all flags of all objects or'ed together
1125	top_obj = 0;
1126	floor_obj = 0;
1127		1047
1128	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1048	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1129	{	1049	{
1130	/* This could be made additive I guess (two lights better than	1050	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1131	* one). But if so, it shouldn't be a simple additive - 2
1132	* light bulbs do not illuminate twice as far as once since
1133	* it is a dissapation factor that is cubed.
1134	*/
1135	if (tmp->glow_radius > light)
1136	light = tmp->glow_radius;	1051	light += tmp->glow_radius;
1137		1052
1138	/* This call is needed in order to update objects the player	1053	/* This call is needed in order to update objects the player
1139	* is standing in that have animations (ie, grass, fire, etc).	1054	* is standing in that have animations (ie, grass, fire, etc).
1140	* However, it also causes the look window to be re-drawn	1055	* However, it also causes the look window to be re-drawn
1141	* 3 times each time the player moves, because many of the	1056	* 3 times each time the player moves, because many of the
1142	* functions the move_player calls eventualy call this.	1057	* functions the move_player calls eventualy call this.
1143	*	1058	*
1144	* Always put the player down for drawing.	1059	* Always put the player down for drawing.
1145	*/	1060	*/
1146	if (!tmp->invisible)	1061	if (expect_true (!tmp->invisible))
1147	{	1062	{
1148	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1063	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1149	{
1150	top = tmp->face;
1151	top_obj = tmp;	1064	top = tmp;
1152	}	1065	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1153	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1154	{	1066	{
1155	/* If we got a floor, that means middle and top were below it,	1067	/* If we got a floor, that means middle and top were below it,
1156	* so should not be visible, so we clear them.	1068	* so should not be visible, so we clear them.
1157	*/	1069	*/
1158	middle = blank_face;	1070	middle = 0;
1159	top = blank_face;	1071	top = 0;
1160	floor = tmp->face;
1161	floor_obj = tmp;	1072	floor = tmp;
		1073	volume = 0;
		1074	items = 0;
1162	}	1075	}
1163	/* Flag anywhere have high priority */	1076	else
1164	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1165	{	1077	{
1166	middle = tmp->face;	1078	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1079	{
		1080	++items;
		1081	volume += tmp->volume ();
		1082	}
1167		1083
1168	middle_obj = tmp;	1084	/* Flag anywhere have high priority */
		1085	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1169	anywhere = 1;	1086	anywhere = tmp;
		1087
		1088	/* Find the highest visible face around. If equal
		1089	* visibilities, we still want the one nearer to the
		1090	* top
		1091	*/
		1092	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1093	{
		1094	middle_visibility = ::faces [tmp->face].visibility;
		1095	middle = tmp;
		1096	}
1170	}	1097	}
1171	/* Find the highest visible face around. If equal
1172	* visibilities, we still want the one nearer to the
1173	* top
1174	*/
1175	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))
1176	{
1177	middle = tmp->face;
1178	middle_obj = tmp;
1179	}
1180	}
1181
1182	if (tmp == tmp->above)
1183	{
1184	LOG (llevError, "Error in structure of map\n");
1185	exit (-1);
1186	}	1098	}
1187		1099
1188	move_slow |= tmp->move_slow;	1100	move_slow |= tmp->move_slow;
1189	move_block |= tmp->move_block;	1101	move_block |= tmp->move_block;
1190	move_on |= tmp->move_on;	1102	move_on |= tmp->move_on;
1191	move_off |= tmp->move_off;	1103	move_off |= tmp->move_off;
1192	move_allow |= tmp->move_allow;	1104	move_allow |= tmp->move_allow;
1193		1105
1194	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1106	allflags |= tmp->flag;
1195	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1107
1196	if (tmp->type == PLAYER) flags |= P_PLAYER;	1108	if (tmp->type == PLAYER) flags |= P_PLAYER;
1197	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1109	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1198	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1199	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1200	}	1110	}
1201		1111
1202	this->light = light;	1112	// FLAG_SEE_ANYWHERE takes precedence
		1113	if (anywhere)
		1114	middle = anywhere;
		1115
		1116	// ORing all flags together and checking them here is much faster
		1117	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1118	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1119	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1120	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1121
		1122	this->light = min (light, MAX_LIGHT_RADIUS);
1203	this->flags_ = flags;	1123	this->flags_ = flags;
1204	this->move_block = move_block & ~move_allow;	1124	this->move_block = move_block & ~move_allow;
1205	this->move_on = move_on;	1125	this->move_on = move_on;
1206	this->move_off = move_off;	1126	this->move_off = move_off;
1207	this->move_slow = move_slow;	1127	this->move_slow = move_slow;
		1128	this->volume_ = (volume + 1023) / 1024;
		1129	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1208		1130
1209	/* At this point, we have a floor face (if there is a floor),	1131	/* At this point, we have a floor face (if there is a floor),
1210	* and the floor is set - we are not going to touch it at	1132	* and the floor is set - we are not going to touch it at
1211	* this point.	1133	* this point.
1212	* middle contains the highest visibility face.	1134	* middle contains the highest visibility face.
…		…
1219	* middle face. This should not happen, as we already have the	1141	* middle face. This should not happen, as we already have the
1220	* else statement above so middle should not get set. OTOH, it	1142	* else statement above so middle should not get set. OTOH, it
1221	* may be possible for the faces to match but be different objects.	1143	* may be possible for the faces to match but be different objects.
1222	*/	1144	*/
1223	if (top == middle)	1145	if (top == middle)
1224	middle = blank_face;	1146	middle = 0;
1225		1147
1226	/* There are three posibilities at this point:	1148	/* There are three posibilities at this point:
1227	* 1) top face is set, need middle to be set.	1149	* 1) top face is set, need middle to be set.
1228	* 2) middle is set, need to set top.	1150	* 2) middle is set, need to set top.
1229	* 3) neither middle or top is set - need to set both.	1151	* 3) neither middle or top is set - need to set both.
1230	*/	1152	*/
1231		1153
1232	for (tmp = last; tmp; tmp = tmp->below)	1154	for (object *tmp = last; tmp; tmp = tmp->below)
1233	{	1155	{
1234	/* Once we get to a floor, stop, since we already have a floor object */	1156	/* Once we get to a floor, stop, since we already have a floor object */
1235	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1157	if (tmp->flag [FLAG_IS_FLOOR])
1236	break;	1158	break;
1237		1159
1238	/* If two top faces are already set, quit processing */	1160	/* If two top faces are already set, quit processing */
1239	if ((top != blank_face) && (middle != blank_face))	1161	if (top && middle)
1240	break;	1162	break;
1241		1163
1242	/* Only show visible faces */	1164	/* Only show visible faces */
1243	if (!tmp->invisible)	1165	if (!tmp->invisible)
1244	{	1166	{
1245	/* Fill in top if needed */	1167	/* Fill in top if needed */
1246	if (top == blank_face)	1168	if (!top)
1247	{	1169	{
1248	top = tmp->face;
1249	top_obj = tmp;	1170	top = tmp;
1250	if (top == middle)	1171	if (top == middle)
1251	middle = blank_face;	1172	middle = 0;
1252	}	1173	}
1253	else	1174	else
1254	{	1175	{
1255	/* top is already set - we should only get here if	1176	/* top is already set - we should only get here if
1256	* middle is not set	1177	* middle is not set
1257	*	1178	*
1258	* Set the middle face and break out, since there is nothing	1179	* Set the middle face and break out, since there is nothing
1259	* more to fill in. We don't check visiblity here, since	1180	* more to fill in. We don't check visiblity here, since
1260	*	1181	*
1261	*/	1182	*/
1262	if (tmp->face != top)	1183	if (tmp != top)
1263	{	1184	{
1264	middle = tmp->face;
1265	middle_obj = tmp;	1185	middle = tmp;
1266	break;	1186	break;
1267	}	1187	}
1268	}	1188	}
1269	}	1189	}
1270	}	1190	}
1271		1191
1272	if (middle == floor)	1192	if (middle == floor)
1273	middle = blank_face;	1193	middle = 0;
1274		1194
1275	if (top == middle)	1195	if (top == middle)
1276	middle = blank_face;	1196	middle = 0;
1277		1197
1278	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1198	#if 0
1279	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1199	faces_obj [0] = top;
1280	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1200	faces_obj [1] = middle;
		1201	faces_obj [2] = floor;
		1202	#endif
1281	}	1203	}
1282		1204
1283	/* this updates the orig_map->tile_map[tile_num] value after finding	1205	maptile *
1284	* the map. It also takes care of linking back the freshly found	1206	maptile::tile_available (int dir, bool load)
1285	* maps tile_map values if it tiles back to this one. It returns
1286	* the value of orig_map->tile_map[tile_num].
1287	*/
1288	static inline maptile *
1289	find_and_link (maptile *orig_map, int tile_num)
1290	{	1207	{
1291	maptile *mp = orig_map->tile_map [tile_num];	1208	if (tile_path[dir])
1292
1293	if (!mp)
1294	{
1295	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1296
1297	if (!mp)
1298	{
1299	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1300	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1301	&orig_map->tile_path[tile_num], &orig_map->path);
1302	mp = new maptile (1, 1);
1303	mp->alloc ();
1304	mp->in_memory = MAP_IN_MEMORY;
1305	}
1306	}	1209	{
		1210	// map is there and we don't need to load it OR it's loaded => return what we have
		1211	if (tile_map[dir] && (!load || tile_map[dir]->linkable ()))
		1212	return tile_map[dir];
1307		1213
1308	int dest_tile = (tile_num + 2) % 4;	1214	// well, try to locate it then, if possible - maybe it's there already
		1215	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1216	return tile_map[dir];
		1217	}
1309		1218
1310	orig_map->tile_map [tile_num] = mp;
1311
1312	// optimisation: back-link map to origin map if euclidean
1313	//TODO: non-euclidean maps MUST GO
1314	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1315	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1316
1317	return mp;	1219	return 0;
1318	}
1319
1320	static inline void
1321	load_and_link (maptile *orig_map, int tile_num)
1322	{
1323	find_and_link (orig_map, tile_num)->load_sync ();
1324	}	1220	}
1325		1221
1326	/* this returns TRUE if the coordinates (x,y) are out of	1222	/* this returns TRUE if the coordinates (x,y) are out of
1327	* map m. This function also takes into account any	1223	* map m. This function also takes into account any
1328	* tiling considerations, loading adjacant maps as needed.	1224	* tiling considerations, loading adjacant maps as needed.
…		…
1341	if (!m)	1237	if (!m)
1342	return 0;	1238	return 0;
1343		1239
1344	if (x < 0)	1240	if (x < 0)
1345	{	1241	{
1346	if (!m->tile_path[3])	1242	if (!m->tile_available (3))
1347	return 1;	1243	return 1;
1348		1244
1349	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1350	find_and_link (m, 3);
1351
1352	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1245	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1353	}	1246	}
1354		1247
1355	if (x >= m->width)	1248	if (x >= m->width)
1356	{	1249	{
1357	if (!m->tile_path[1])	1250	if (!m->tile_available (1))
1358	return 1;	1251	return 1;
1359		1252
1360	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1361	find_and_link (m, 1);
1362
1363	return out_of_map (m->tile_map[1], x - m->width, y);	1253	return out_of_map (m->tile_map[1], x - m->width, y);
1364	}	1254	}
1365		1255
1366	if (y < 0)	1256	if (y < 0)
1367	{	1257	{
1368	if (!m->tile_path[0])	1258	if (!m->tile_available (0))
1369	return 1;	1259	return 1;
1370		1260
1371	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1372	find_and_link (m, 0);
1373
1374	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1261	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1375	}	1262	}
1376		1263
1377	if (y >= m->height)	1264	if (y >= m->height)
1378	{	1265	{
1379	if (!m->tile_path[2])	1266	if (!m->tile_available (2))
1380	return 1;	1267	return 1;
1381
1382	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1383	find_and_link (m, 2);
1384		1268
1385	return out_of_map (m->tile_map[2], x, y - m->height);	1269	return out_of_map (m->tile_map[2], x, y - m->height);
1386	}	1270	}
1387		1271
1388	/* Simple case - coordinates are within this local	1272	/* Simple case - coordinates are within this local
…		…
1402	maptile *	1286	maptile *
1403	maptile::xy_find (sint16 &x, sint16 &y)	1287	maptile::xy_find (sint16 &x, sint16 &y)
1404	{	1288	{
1405	if (x < 0)	1289	if (x < 0)
1406	{	1290	{
1407	if (!tile_path[3])	1291	if (!tile_available (3))
1408	return 0;	1292	return 0;
1409		1293
1410	find_and_link (this, 3);
1411	x += tile_map[3]->width;	1294	x += tile_map[3]->width;
1412	return tile_map[3]->xy_find (x, y);	1295	return tile_map[3]->xy_find (x, y);
1413	}	1296	}
1414		1297
1415	if (x >= width)	1298	if (x >= width)
1416	{	1299	{
1417	if (!tile_path[1])	1300	if (!tile_available (1))
1418	return 0;	1301	return 0;
1419		1302
1420	find_and_link (this, 1);
1421	x -= width;	1303	x -= width;
1422	return tile_map[1]->xy_find (x, y);	1304	return tile_map[1]->xy_find (x, y);
1423	}	1305	}
1424		1306
1425	if (y < 0)	1307	if (y < 0)
1426	{	1308	{
1427	if (!tile_path[0])	1309	if (!tile_available (0))
1428	return 0;	1310	return 0;
1429		1311
1430	find_and_link (this, 0);
1431	y += tile_map[0]->height;	1312	y += tile_map[0]->height;
1432	return tile_map[0]->xy_find (x, y);	1313	return tile_map[0]->xy_find (x, y);
1433	}	1314	}
1434		1315
1435	if (y >= height)	1316	if (y >= height)
1436	{	1317	{
1437	if (!tile_path[2])	1318	if (!tile_available (2))
1438	return 0;	1319	return 0;
1439		1320
1440	find_and_link (this, 2);
1441	y -= height;	1321	y -= height;
1442	return tile_map[2]->xy_find (x, y);	1322	return tile_map[2]->xy_find (x, y);
1443	}	1323	}
1444		1324
1445	/* Simple case - coordinates are within this local	1325	/* Simple case - coordinates are within this local
…		…
1450		1330
1451	/**	1331	/**
1452	* Return whether map2 is adjacent to map1. If so, store the distance from	1332	* Return whether map2 is adjacent to map1. If so, store the distance from
1453	* map1 to map2 in dx/dy.	1333	* map1 to map2 in dx/dy.
1454	*/	1334	*/
1455	static int	1335	int
1456	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1336	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
1457	{	1337	{
1458	if (!map1 || !map2)	1338	if (!map1 || !map2)
1459	return 0;	1339	return 0;
1460		1340
1461	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded	1341	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
1462	//fix: compare paths instead (this is likely faster, too!)	1342	//fix: compare paths instead (this is likely faster, too!)
1463	if (map1 == map2)	1343	if (map1 == map2)
1464	{	1344	{
1465	*dx = 0;	1345	*dx = 0;
1466	*dy = 0;	1346	*dy = 0;
1467	}	1347	}
1468	else if (map1->tile_map[0] == map2)	1348	else if (map1->tile_available (TILE_NORTH, false) == map2)
1469	{ /* up */	1349	{
1470	*dx = 0;	1350	*dx = 0;
1471	*dy = -map2->height;	1351	*dy = -map2->height;
1472	}	1352	}
1473	else if (map1->tile_map[1] == map2)	1353	else if (map1->tile_available (TILE_EAST , false) == map2)
1474	{ /* right */	1354	{
1475	*dx = map1->width;	1355	*dx = map1->width;
1476	*dy = 0;	1356	*dy = 0;
1477	}	1357	}
1478	else if (map1->tile_map[2] == map2)	1358	else if (map1->tile_available (TILE_SOUTH, false) == map2)
1479	{ /* down */	1359	{
1480	*dx = 0;	1360	*dx = 0;
1481	*dy = map1->height;	1361	*dy = map1->height;
1482	}	1362	}
1483	else if (map1->tile_map[3] == map2)	1363	else if (map1->tile_available (TILE_WEST , false) == map2)
1484	{ /* left */	1364	{
1485	*dx = -map2->width;	1365	*dx = -map2->width;
1486	*dy = 0;	1366	*dy = 0;
1487	}	1367	}
1488	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1368	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_EAST , false) == map2)
1489	{ /* up right */	1369	{ /* up right */
1490	*dx = map1->tile_map[0]->width;	1370	*dx = +map1->tile_map[TILE_NORTH]->width;
1491	*dy = -map1->tile_map[0]->height;	1371	*dy = -map1->tile_map[TILE_NORTH]->height;
1492	}	1372	}
1493	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1373	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_WEST , false) == map2)
1494	{ /* up left */	1374	{ /* up left */
1495	*dx = -map2->width;	1375	*dx = -map2->width;
1496	*dy = -map1->tile_map[0]->height;	1376	*dy = -map1->tile_map[TILE_NORTH]->height;
1497	}	1377	}
1498	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1378	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_NORTH, false) == map2)
1499	{ /* right up */	1379	{ /* right up */
1500	*dx = map1->width;	1380	*dx = +map1->width;
1501	*dy = -map2->height;	1381	*dy = -map2->height;
1502	}	1382	}
1503	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1383	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_SOUTH, false) == map2)
1504	{ /* right down */	1384	{ /* right down */
1505	*dx = map1->width;	1385	*dx = +map1->width;
1506	*dy = map1->tile_map[1]->height;	1386	*dy = +map1->tile_map[TILE_EAST]->height;
1507	}	1387	}
1508	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1388	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_EAST , false) == map2)
1509	{ /* down right */	1389	{ /* down right */
1510	*dx = map1->tile_map[2]->width;	1390	*dx = +map1->tile_map[TILE_SOUTH]->width;
1511	*dy = map1->height;	1391	*dy = +map1->height;
1512	}	1392	}
1513	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1393	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_WEST , false) == map2)
1514	{ /* down left */	1394	{ /* down left */
1515	*dx = -map2->width;	1395	*dx = -map2->width;
1516	*dy = map1->height;	1396	*dy = +map1->height;
1517	}	1397	}
1518	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1398	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_NORTH, false) == map2)
1519	{ /* left up */	1399	{ /* left up */
1520	*dx = -map1->tile_map[3]->width;	1400	*dx = -map1->tile_map[TILE_WEST]->width;
1521	*dy = -map2->height;	1401	*dy = -map2->height;
1522	}	1402	}
1523	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1403	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_SOUTH, false) == map2)
1524	{ /* left down */	1404	{ /* left down */
1525	*dx = -map1->tile_map[3]->width;	1405	*dx = -map1->tile_map[TILE_WEST]->width;
1526	*dy = map1->tile_map[3]->height;	1406	*dy = +map1->tile_map[TILE_WEST]->height;
1527	}	1407	}
1528	else	1408	else
1529	return 0;	1409	return 0;
1530		1410
1531	return 1;	1411	return 1;
…		…
1551	/* From map.c	1431	/* From map.c
1552	* This is used by get_player to determine where the other	1432	* This is used by get_player to determine where the other
1553	* creature is. get_rangevector takes into account map tiling,	1433	* creature is. get_rangevector takes into account map tiling,
1554	* so you just can not look the the map coordinates and get the	1434	* so you just can not look the the map coordinates and get the
1555	* righte value. distance_x/y are distance away, which	1435	* righte value. distance_x/y are distance away, which
1556	* can be negativbe. direction is the crossfire direction scheme	1436	* can be negative. direction is the crossfire direction scheme
1557	* that the creature should head. part is the part of the	1437	* that the creature should head. part is the part of the
1558	* monster that is closest.	1438	* monster that is closest.
1559	*	1439	*
1560	* get_rangevector looks at op1 and op2, and fills in the	1440	* get_rangevector looks at op1 and op2, and fills in the
1561	* structure for op1 to get to op2.	1441	* structure for op1 to get to op2.
…		…
1567	*	1447	*
1568	* currently, the only flag supported (0x1) is don't translate for	1448	* currently, the only flag supported (0x1) is don't translate for
1569	* closest body part of 'op1'	1449	* closest body part of 'op1'
1570	*/	1450	*/
1571	void	1451	void
1572	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1452	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1573	{	1453	{
1574	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1454	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1575	{	1455	{
1576	/* be conservative and fill in _some_ data */	1456	/* be conservative and fill in _some_ data */
1577	retval->distance = 100000;	1457	retval->distance = 10000;
1578	retval->distance_x = 32767;	1458	retval->distance_x = 10000;
1579	retval->distance_y = 32767;	1459	retval->distance_y = 10000;
1580	retval->direction = 0;	1460	retval->direction = 0;
1581	retval->part = 0;	1461	retval->part = 0;
1582	}	1462	}
1583	else	1463	else
1584	{	1464	{
1585	object *best;
1586
1587	retval->distance_x += op2->x - op1->x;	1465	retval->distance_x += op2->x - op1->x;
1588	retval->distance_y += op2->y - op1->y;	1466	retval->distance_y += op2->y - op1->y;
1589		1467
1590	best = op1;	1468	object *best = op1;
		1469
1591	/* If this is multipart, find the closest part now */	1470	/* If this is multipart, find the closest part now */
1592	if (!(flags & 0x1) && op1->more)	1471	if (!(flags & 1) && op1->more)
1593	{	1472	{
1594	object *tmp;	1473	int best_distance = idistance (retval->distance_x, retval->distance_y);
1595	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
1596		1474
1597	/* we just take the offset of the piece to head to figure	1475	/* we just take the offset of the piece to head to figure
1598	* distance instead of doing all that work above again	1476	* distance instead of doing all that work above again
1599	* since the distance fields we set above are positive in the	1477	* since the distance fields we set above are positive in the
1600	* same axis as is used for multipart objects, the simply arithmetic	1478	* same axis as is used for multipart objects, the simply arithmetic
1601	* below works.	1479	* below works.
1602	*/	1480	*/
1603	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1481	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1604	{	1482	{
1605	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1483	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
1606	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1484
1607	if (tmpi < best_distance)	1485	if (tmpi < best_distance)
1608	{	1486	{
1609	best_distance = tmpi;	1487	best_distance = tmpi;
1610	best = tmp;	1488	best = tmp;
1611	}	1489	}
1612	}	1490	}
1613		1491
1614	if (best != op1)	1492	if (best != op1)
1615	{	1493	{
1616	retval->distance_x += op1->x - best->x;	1494	retval->distance_x += op1->x - best->x;
1617	retval->distance_y += op1->y - best->y;	1495	retval->distance_y += op1->y - best->y;
1618	}	1496	}
1619	}	1497	}
1620		1498
1621	retval->part = best;	1499	retval->part = best;
1622	retval->distance = idistance (retval->distance_x, retval->distance_y);	1500	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1623	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1501	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1624	}	1502	}
1625	}	1503	}
1626		1504
1627	/* this is basically the same as get_rangevector above, but instead of	1505	/* this is basically the same as get_rangevector above, but instead of
1628	* the first parameter being an object, it instead is the map	1506	* the first parameter being an object, it instead is the map
…		…
1632	* flags has no meaning for this function at this time - I kept it in to	1510	* flags has no meaning for this function at this time - I kept it in to
1633	* be more consistant with the above function and also in case they are needed	1511	* be more consistant with the above function and also in case they are needed
1634	* for something in the future. Also, since no object is pasted, the best	1512	* for something in the future. Also, since no object is pasted, the best
1635	* field of the rv_vector is set to NULL.	1513	* field of the rv_vector is set to NULL.
1636	*/	1514	*/
1637
1638	void	1515	void
1639	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1516	get_rangevector_from_mapcoord (maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1640	{	1517	{
1641	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1518	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1642	{	1519	{
1643	/* be conservative and fill in _some_ data */	1520	/* be conservative and fill in _some_ data */
1644	retval->distance = 100000;	1521	retval->distance = 100000;
1645	retval->distance_x = 32767;	1522	retval->distance_x = 32767;
1646	retval->distance_y = 32767;	1523	retval->distance_y = 32767;
1647	retval->direction = 0;	1524	retval->direction = 0;
1648	retval->part = 0;	1525	retval->part = 0;
1649	}	1526	}
1650	else	1527	else
1651	{	1528	{
1652	retval->distance_x += op2->x - x;	1529	retval->distance_x += op2->x - x;
1653	retval->distance_y += op2->y - y;	1530	retval->distance_y += op2->y - y;
1654		1531
1655	retval->part = NULL;	1532	retval->part = 0;
1656	retval->distance = idistance (retval->distance_x, retval->distance_y);	1533	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1657	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1534	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1658	}	1535	}
1659	}	1536	}
1660		1537
1661	/* Returns true of op1 and op2 are effectively on the same map	1538	/* Returns true of op1 and op2 are effectively on the same map
1662	* (as related to map tiling). Note that this looks for a path from	1539	* (as related to map tiling). Note that this looks for a path from
…		…
1672	int dx, dy;	1549	int dx, dy;
1673		1550
1674	return adjacent_map (op1->map, op2->map, &dx, &dy);	1551	return adjacent_map (op1->map, op2->map, &dx, &dy);
1675	}	1552	}
1676		1553
		1554	//-GPL
		1555
1677	object *	1556	object *
1678	maptile::insert (object *op, int x, int y, object *originator, int flags)	1557	maptile::insert (object *op, int x, int y, object *originator, int flags)
1679	{	1558	{
1680	if (!op->flag [FLAG_REMOVED])
1681	op->remove ();
1682
1683	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1559	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1684	}	1560	}
1685		1561
		1562	region *
		1563	maptile::region (int x, int y) const
		1564	{
		1565	if (regions
		1566	&& regionmap
		1567	&& !OUT_OF_REAL_MAP (this, x, y))
		1568	if (struct region *reg = regionmap [regions [y * width + x]])
		1569	return reg;
		1570
		1571	if (default_region)
		1572	return default_region;
		1573
		1574	return ::region::default_region ();
		1575	}
		1576
		1577	//+GPL
		1578
		1579	/* picks a random object from a style map.
		1580	*/
		1581	object *
		1582	maptile::pick_random_object (rand_gen &gen) const
		1583	{
		1584	/* while returning a null object will result in a crash, that
		1585	* is actually preferable to an infinite loop. That is because
		1586	* most servers will automatically restart in case of crash.
		1587	* Change the logic on getting the random space - shouldn't make
		1588	* any difference, but this seems clearer to me.
		1589	*/
		1590	for (int i = 1000; --i;)
		1591	{
		1592	object *pick = at (gen (width), gen (height)).bot;
		1593
		1594	// must be head: do not prefer big monsters just because they are big.
		1595	if (pick && pick->is_head ())
		1596	return pick;
		1597	}
		1598
		1599	// instead of crashing in the unlikely(?) case, try to return *something*
		1600	return archetype::find (shstr_bug);
		1601	}
		1602
		1603	//-GPL
		1604
		1605	void
		1606	maptile::play_sound (faceidx sound, int x, int y) const
		1607	{
		1608	if (!sound)
		1609	return;
		1610
		1611	for_all_players_on_map (pl, this)
		1612	if (client *ns = pl->ns)
		1613	{
		1614	int dx = x - pl->ob->x;
		1615	int dy = y - pl->ob->y;
		1616
		1617	int distance = idistance (dx, dy);
		1618
		1619	if (distance <= MAX_SOUND_DISTANCE)
		1620	ns->play_sound (sound, dx, dy);
		1621	}
		1622	}
		1623
		1624	void
		1625	maptile::say_msg (const char *msg, int x, int y) const
		1626	{
		1627	for_all_players (pl)
		1628	if (client *ns = pl->ns)
		1629	{
		1630	int dx = x - pl->ob->x;
		1631	int dy = y - pl->ob->y;
		1632
		1633	int distance = idistance (dx, dy);
		1634
		1635	if (distance <= MAX_SOUND_DISTANCE)
		1636	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1637	}
		1638	}
		1639
		1640	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1641
		1642	static void
		1643	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1644	{
		1645	// clip to map to the left
		1646	if (x0 < 0)
		1647	{
		1648	if (maptile *tile = m->tile_available (TILE_WEST, 1))
		1649	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1650
		1651	if (x1 < 0) // entirely to the left
		1652	return;
		1653
		1654	x0 = 0;
		1655	}
		1656
		1657	// clip to map to the right
		1658	if (x1 > m->width)
		1659	{
		1660	if (maptile *tile = m->tile_available (TILE_EAST, 1))
		1661	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1662
		1663	if (x0 > m->width) // entirely to the right
		1664	return;
		1665
		1666	x1 = m->width;
		1667	}
		1668
		1669	// clip to map above
		1670	if (y0 < 0)
		1671	{
		1672	if (maptile *tile = m->tile_available (TILE_NORTH, 1))
		1673	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1674
		1675	if (y1 < 0) // entirely above
		1676	return;
		1677
		1678	y0 = 0;
		1679	}
		1680
		1681	// clip to map below
		1682	if (y1 > m->height)
		1683	{
		1684	if (maptile *tile = m->tile_available (TILE_SOUTH, 1))
		1685	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1686
		1687	if (y0 > m->height) // entirely below
		1688	return;
		1689
		1690	y1 = m->height;
		1691	}
		1692
		1693	// if we get here, the rect is within the current map
		1694	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1695
		1696	r->m = m;
		1697	r->x0 = x0;
		1698	r->y0 = y0;
		1699	r->x1 = x1;
		1700	r->y1 = y1;
		1701	r->dx = dx;
		1702	r->dy = dy;
		1703	}
		1704
		1705	maprect *
		1706	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1707	{
		1708	buf.clear ();
		1709
		1710	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1711
		1712	// add end marker
		1713	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1714	r->m = 0;
		1715
		1716	return (maprect *)buf.linearise ();
		1717	}
		1718

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